The World's Toughest Outboard Marathon Celebrating 76 Years

Outboard Marathon Nationals: Racing August 10-11, 2024

Inland Waterway, Northern Michigan

Join the Top O' Michigan Outboard Racing Club (TOMORC) this August for the 76th Annual Marathon. Over two days of exciting and tough outboard racing in Northern Michigan. The course navigates through 87 miles of Northern Michigan's beautiful Inland Waterway. Registration will be Friday, August 9th, from 5 to 7 PM at Devoe Beach in Indian River. Register also on Saturday, from 8-9 AM at the race pits.

2024 Club Meeting Calendar

Meetings held at the Inland Waterway Museum @ 6:00 pm unless stated otherwise

February 27th
April 2nd
April 30th
May 28th
June 25th
July 16th 
July 30th
August 27th 
September 24th
October 29th
November TBD
December TBD





2024 Sponsors

2024 Class Sponsors:


2024 Platinum Sponsors:


2024 Gold Sponsors:


2024 Silver Sponsors:


2024 Bronze Sponsors:


Past Marathon Results

2024 Course

Saturdays course: approx 42 miles, modified Lemans start from pits out 1/2 mile to turn bouy and then back into Indian River. Race runs through Indian River then along the West side of Mullett Lake and entering Cheboygan River and running its full length to a turn around buoy in Cheboygan. The course then follows the same route back to a finish line at Devoe Beach in Indian River. Sundays course: approx 42 miles, modified Lemans start from pits across Burt Lake and then North to entrance of Crooked River. Course runs through Crooked River and into and around Crooked Lake making 3 check points and then back into Crooked River. Course then continues South along the West side of Burt Lake then across the lake into the Indian River. The race travels the full length of Indian River to a check point at Mullett Lake and then back through Indian River to the finish line at Devoe Beach. The Top O' Michigan Outboard Racing Club welcomes new participants and race veterans alike.

Photo by J. Schwartz Photography

2024 Marathon Nationals

The Top O' Michigan Outboard Marathon National Championship race will celebrate its 76th anniversary in 2024.
Founded in 1949, the race which is known as the world's toughest outboard marathon, has grown to legendary status in the boat racing world. For more than 70 years, boat racers from across the United States, as well as other countries, have been coming to northern Michigan to race across the rivers and lakes of the Inland Water Route in an adventure that tests both drivers and their boats.
For an event to reach its 76th running year is impressive. There have been many changes over the years ranging from the course layout to the registration fees – but one thing is still the same – the passion.
We've got cash prizes, apparel, catered dinners, and all of the usual fan fare! LETS GO RACING!

Photo by J. Schwartz Photography

76th Racing Schedule

Friday August 9 th : Racers, their families, pit crews, and our volunteers are invited to an exclusive and premier dinner at DeVoe Beach during Friday night registration. There will be a wonderful meal catered by Dale and Angie Berry with dessert by Patty Lauer Bek and beverages from Pepsi!

This is limited to Racers, Families, Pit Crews, and Volunteers.

Saturday August 10th : TBD

Sunday August 11th : Award Ceremony at Devoe Beach with catering by BC Pizza and the Pinehurst!

Aerial photo provided by McVideo Productions

Club History

The TOMORC started in 1949 as the Top O’ Michigan Marathon Association. The TOMORC has continued to support the region & promote the marathon for the past 75 years. The club has 25+ active members who have continued to put on the oldest & most prestigious race in the outboard marathon circuit. The Top O’ Michigan Outboard Marathon has been the Marathon Nationals for many years. In 2013, the Top O’ Michigan Marathon won the American Power Boat Association Kevin Ladd Award for Best Stock Outboard Race in Region 6. Since 2019, TOMORC partnered with the Presque Isle Yacht Club to help put on the annual Fireside 500 on Grand Lake in Presque Isle, MI.

Past Marathon Champs

Contact Us & Membership

General Info:

Commodore: Samantha Fairbairn
Vice Commodore: Peter Lauer
Treasurer: Sarah Bek
Secretary: Charlie Smith
Associate Member: Dan Pearson

Want to become an Active Member of the Top O’ Michigan Outboard Racing Club?

PO Box 873
Harbor Springs, Michigan 49740

  1. To join, please print and fill out our membership form and send your dues to our PO Box
  2. Dues are $15 dollars per person and $20 dollars if joining on a race weekend.
  3. Please make checks out to TOMORC
  4. Any questions regarding membership, please email us!
Membership Form 2024

tomorc race
Photo provided by J. Schwartz Photography